You may think you're prepared for retirement, but chances are, you probably aren't. Financial firms have repeated that message frequently in recent years, but a new spot from Prudential paints a clearer picture. In the 60-second commercial, which begins airing Friday, real-life couples guess at how much money they will need for retirement and then walk across squares, each representing a year of time, to see how far they can get. Spoiler alert: not very far."It turned out a lot of people fell sh... read more